topic Re: Civil 3d Corridor is not forming surface properly in Civil 3D Forum

Civil 3d Corridor is not forming surface properly

Anonymous — Fri, 10 Aug 2018 10:19:45 GMT

Hi,

I have created a corridor in civil 3d and set various baseline parameters and target regions to it. when i created the corridor surface the contours show that the triangles are formed irregularly connecting the top of curb at some points.

I Have also added the featureline parameters of Back of curb, crown, ETW and top of Curb. in the surface parameter tab in the corridor properties as well.

I have attached the screenshots of the anomalies and the properties tab.

Could Anyone please guide me.

Kind regards,

Re: Civil 3d Corridor is not forming surface properly

wfberry — Fri, 10 Aug 2018 12:21:26 GMT

Try calculating your surface only using the TOP .

Bill

Re: Civil 3d Corridor is not forming surface properly

user181 — Fri, 10 Aug 2018 12:33:59 GMT

Hi @Anonymous, I agree with @wfberry you only need top links and you should also select Top Links in the Overhang Correction column.

Re: Civil 3d Corridor is not forming surface properly

tcorey — Fri, 10 Aug 2018 12:48:31 GMT

I get better results using Corridor Feature Lines as Corridor Surface data than I do using Links, like Top or Datum.

On the dialog, from your third screenshot, where you have Data type set to Links, change that to Feature Lines and then select which point codes to add to the feature lines.

Re: Civil 3d Corridor is not forming surface properly

wfberry — Fri, 10 Aug 2018 13:08:40 GMT

Tim:

What are you doing up so early?

<G>

Bill

Re: Civil 3d Corridor is not forming surface properly

tcorey — Fri, 10 Aug 2018 13:23:54 GMT

@wfberry, It's a normal day, three hours of quiet time before the phone rings or the email jingles or the text whistles...

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Fri, 10 Aug 2018 13:41:07 GMT

Hi I tried it but it got more anomalies when i added only the top links.

regards,

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Fri, 10 Aug 2018 13:46:48 GMT

Hi Tcorey,

I tried to add featurelinee only instead of links but got the same type of problem

Re: Civil 3d Corridor is not forming surface properly

user181 — Fri, 10 Aug 2018 13:55:49 GMT

Maybe there is a problem in your corridor. Can you post the drawing?

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Fri, 10 Aug 2018 13:59:26 GMT

Hi @user181

I have attached the corridor dwg. for your reference.

Regards,

Re: Civil 3d Corridor is not forming surface properly

cwr-pae — Fri, 10 Aug 2018 14:25:36 GMT

With only a quick look at your drawing I'm struck by the way you set up the assemblies. It appears the corridor is having trouble with the curbs being separate assemblies attached with a additional baseline. The curbs should be in attached to the lane subassembly in one assembly, with a featureline or alignment/profile as targets for the lane to control width/elevation. Also the basic curb subassembly doesn't have a point/featureline code for the flowline so it needs to be attached on top of the lane instead of off then end and below, look at using one of the curb and gutter subs. You can set the gutter width to .0001 to get and effective gutterless curb.

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Fri, 10 Aug 2018 14:42:01 GMT

Hi @cwr-pae I tried to keep the entire stretch of the road unbroken due to the car parks and so i tried to draw the kerbs separate, When i tried to draw the corridor with kerbs set together with the lane i had to break the lane at places where I needed to add the car parks, since the additional width of the road i added was added after the kerbs.

I found this was easier than breaking the lane at every point of insertion. hence i did it with separate baseline parameters and kerbs.

And thanks for the kerb gutter information i've added it with 0.001 width instead of the basic kerb.

Kind regards,

Re: Civil 3d Corridor is not forming surface properly

cwr-pae — Fri, 10 Aug 2018 18:37:21 GMT

Did the curb and gutter assembly help your surface by adding the flowline to the surface?

Have you considered using a conditional horizontal target subassemblies to decide curb or lane based on the presence of featurelines? You should be able to reduce the number of regions you have considerably.

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Mon, 13 Aug 2018 09:41:34 GMT

hi @cwr-pae,

The pavement seems to be alright when i added the curb with gutter.But the the Curb regions are having a lot of ups and downs showing no curb at some points and with curbs at some points as shown in the screenshot.

I used the target based on the featurelines and also I made the subassemblies to the right width for every baseline regions.

Kind regards,

Re: Civil 3d Corridor is not forming surface properly

Dexterel — Mon, 13 Aug 2018 11:19:51 GMT

try to lower the frequency, especially At offset target geometry point. Something like in attached image.

If you have two stations very close to each other, something strange happens, right subassambly is build on the left side.

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Mon, 13 Aug 2018 11:34:29 GMT

Hi @Dexterel,

I tried lowering the frequency but it worsened the corridor, It missed the kerb points entirely at carparks.

I have attached the sreenshots for your reference.

Kine regards,

Re: Civil 3d Corridor is not forming surface properly

Dexterel — Mon, 13 Aug 2018 11:46:38 GMT

Upload the dwg and I will fix it for you

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Mon, 13 Aug 2018 11:53:06 GMT

hi @Dexterel,

Please find attached the corridor dwg.

Kind regards,

Re: Civil 3d Corridor is not forming surface properly

Dexterel — Mon, 13 Aug 2018 11:55:20 GMT

Is this ok?

The surface has 0 edits.

Please note I used an older version for DWG, that you posted before.

Re: Civil 3d Corridor is not forming surface properly

Anonymous — Mon, 13 Aug 2018 12:09:46 GMT

Hi @Dexterel,

I tried the surface edit you've shown on the previous screenshot but yet i am not getting the curbs right.

Please find attached the screenshot of the object viewer view.

Kind regards,